This is a list of prominent people who were born in or lived for a significant period in U.S. state of South Dakota. For a larger list by location, see People from South Dakota. == Academia == Vine Deloria Jr., American Indian author, theologian, historian, and activist Alvin Hansen, economist, Harvard professor; born in Viborg Arthur Larson, law professor, United States Undersecretary of Labor; born in Sioux Falls Ernest O. Lawrence, inventor of cyclotron, winner of 1939 Nobel Prize for Phys…